Ignition Coils

Ignition Coils: from stock replacements to full coil-conversion kits

An ignition coil takes low-voltage from the electrical system and steps it up into the high-voltage spark that fires the plug. When a coil weakens you get misfires, rough idle, a lit check-engine light and lost power under load. Fitting fresh ignition coils restores a clean, consistent spark, and on a modified or boosted engine a stronger coil can keep the spark from being blown out at higher cylinder pressures. On coil-on-plug engines each cylinder gets its own coil; older setups use coil packs feeding wires.

What we stock

There are 111 ignition coils in this category, spanning 17 brands including Mishimoto (30 in the sample), TwinPower, aFe, Bosch, NGK, Ford Racing, Granatelli Motor Sports, Haltech, AEM and HKS. Prices currently run from $42 to $1,648 for what is in stock right now, not a locked-in promise. That spread covers everything from single replacement coils up to complete conversion kits.

Of the range, 69 products carry specific fitment data covering model years from 1980 to 2024. Top makes include Subaru, Ford, Mazda, Harley-Davidson, Hyundai, Nissan, Audi, Honda, BMW, Kia, Jeep, GM, Toyota and Dodge, on vehicles like the Subaru BRZ and WRX STI, Nissan 350Z, Ford Mustang and F-150, Mazda RX-8 and Miata, Kia Stinger and Harley-Davidson Big Twin.

How to choose

Decide first whether you want a direct replacement or an upgrade. If you just need to clear a misfire, a straight OE-style coil is the cheapest, simplest path and sits near the bottom of the range. If you are chasing spark reliability on a built engine, the higher-priced options make more sense. The Granatelli GM LT Malevolent coil packs (set of 8) and the Granatelli Dodge Hot Street coil-on-plug kit bundle multiple coils and connectors for V8 platforms.

For coil conversions, Haltech offers the 1JZ/2JZ R35 coil conversion kit with bracket and connectors and a fuller JZ R35 kit that adds a harness. At the top of the range, HKS Super Fire Racing Coil Pro sets are built for specific Skyline chassis: the BNR32 set and the BCNR33 set. Buy the kit that matches your platform and wiring rather than adapting a mismatch.

What else you need

When you replace coils it is worth checking the rest of the ignition and running gear. Look at Batteries if cranking voltage is weak, and Fuel Pumps if you are tuning fueling alongside spark. Sealing and internals live under Head Gaskets, Gasket Kits and Pistons. Browse everything in the parent Engine Components section for related hardware.

Fitment and ordering

Confirm your year, make and model before ordering, especially on conversion kits. For help matching a coil to your car, call 813-535-5801 or reach us through contact us. All orders ship free, and Affirm and Katapult financing is available on the higher-priced kits.

Ignition Coils: from stock replacements to full coil-conversion kits

An ignition coil takes low-voltage from the electrical system and steps it up into the high-voltage spark that fires the plug. When a coil weakens you get misfires, rough idle, a lit check-engine light and lost power under load. Fitting fresh ignition coils restores a clean, consistent spark, and on a modified or boosted engine a stronger coil can keep the spark from being blown out at higher cylinder pressures. On coil-on-plug engines each cylinder gets its own coil; older setups use coil packs feeding wires.

What we stock

There are 111 ignition coils in this category, spanning 17 brands including Mishimoto (30 in the sample), TwinPower, aFe, Bosch, NGK, Ford Racing, Granatelli Motor Sports, Haltech, AEM and HKS. Prices currently run from $42 to $1,648 for what is in stock right now, not a locked-in promise. That spread covers everything from single replacement coils up to complete conversion kits.

Of the range, 69 products carry specific fitment data covering model years from 1980 to 2024. Top makes include Subaru, Ford, Mazda, Harley-Davidson, Hyundai, Nissan, Audi, Honda, BMW, Kia, Jeep, GM, Toyota and Dodge, on vehicles like the Subaru BRZ and WRX STI, Nissan 350Z, Ford Mustang and F-150, Mazda RX-8 and Miata, Kia Stinger and Harley-Davidson Big Twin.

How to choose

Decide first whether you want a direct replacement or an upgrade. If you just need to clear a misfire, a straight OE-style coil is the cheapest, simplest path and sits near the bottom of the range. If you are chasing spark reliability on a built engine, the higher-priced options make more sense. The Granatelli GM LT Malevolent coil packs (set of 8) and the Granatelli Dodge Hot Street coil-on-plug kit bundle multiple coils and connectors for V8 platforms.

For coil conversions, Haltech offers the 1JZ/2JZ R35 coil conversion kit with bracket and connectors and a fuller JZ R35 kit that adds a harness. At the top of the range, HKS Super Fire Racing Coil Pro sets are built for specific Skyline chassis: the BNR32 set and the BCNR33 set. Buy the kit that matches your platform and wiring rather than adapting a mismatch.

What else you need

When you replace coils it is worth checking the rest of the ignition and running gear. Look at Batteries if cranking voltage is weak, and Fuel Pumps if you are tuning fueling alongside spark. Sealing and internals live under Head Gaskets, Gasket Kits and Pistons. Browse everything in the parent Engine Components section for related hardware.

Fitment and ordering

Confirm your year, make and model before ordering, especially on conversion kits. For help matching a coil to your car, call 813-535-5801 or reach us through contact us. All orders ship free, and Affirm and Katapult financing is available on the higher-priced kits.